25KiB, 473x557, 1608318851515.png View SameGoogleiqdbSauceNAO Anonymous Tue 12 Jan 20:45:51 2021 No.12573609 ViewReplyOriginalReport Quoted By: >>12573636 >>12574556 >>12574852 >>12574905 How do bones grow? Why do our get weaker as we age and why can't we prevent it?
